Institute of Astronomy

Two-Dimensional Stellar Evolution: 2DStars

SpeakerTalk DateTalk Series
Ghina Halabi27 July 2016Binary Stars Talks

Abstract

Many stars are known to be rapid rotators, both at the surface and in their interiors. This rapid rotation causes aspherical distortion and surface temperature variations. It also drastically alters their chemistry, magnetic fields and future evolution. Thus, they can only be modelled properly in multi-dimensions.  In this talk, I will introduce 2DStars which is a general-use 2D, adaptable to 3D, stellar evolution code that is currently being developed at IoA. 2DStars will incorporate essential physics like rotation, magnetic fields, mixing, tides and mass transfer. In addition to modeling rotating stars, I will discuss the possible applications of the code which encompass a variety of multi-dimensional phenomena in stellar evolution like accretion and mass transfer in close binary systems, star formation and X-ray binaries.

Presentation